Dzhokhar Tsarnaev, who is charged in connection with the Boston Marathon bombings, is shown in a photo from the Russian social networking site Vkontakte. / vk.com via AP

by Mike James, USA TODAY

by Mike James, USA TODAY

It's a texting session between two student friends that you just don't see every day.

Three days after the Boston Marathon bombings shook the foundations of safety in Boston and beyond, 19-year-old Dias Kadyrbayev texted his college buddy Dzhokhar Tsarnaev and made a quick observation.

The April 15 attacks killed three and injured more than 260 people in Boston.

One of the bombers looks just like you, said Kadyrbayev, who knew Tsarnaev at the University of Massachusetts-Dartmouth.

"LOL," was the reply from Tsarnaev, acccording to a federal affidavit. "You better not text me ... come to my room and take whatever you want."

Kadyrbayev then showed the text message to a friend, Azamat Tazhayakov, another of Tsarnaev's college acquaintances.

When Tazhayakov saw it, "he believed he would never see Tsarnaev alive again," court papers said.

Authorities say, however, that there's a chance they may see each other yet: in court or in prison. Kadyrbayev and Tazhayakov are charged with helping Tsarnaev after-the-fact in the bombing by getting rid of incriminating evidence.